학술논문

Measurement of CP violation in the $B_s^0\rightarrow\phi\phi$ decay and search for the $B^0\rightarrow \phi\phi$ decay
Document Type
Working Paper
Author
LHCb collaborationAaij, R.Beteta, C. AbellánAdeva, B.Adinolfi, M.Aidala, C. A.Ajaltouni, Z.Akar, S.Albicocco, P.Albrecht, J.Alessio, F.Alexander, M.Albero, A. AlfonsoAlkhazov, G.Cartelle, P. AlvarezAlves Jr, A. A.Amato, S.Amhis, Y.An, L.Anderlini, L.Andreassi, G.Andreotti, M.Andrews, J. E.Archilli, F.Romeu, J. ArnauArtamonov, A.Artuso, M.Arzymatov, K.Aslanides, E.Atzeni, M.Audurier, B.Bachmann, S.Back, J. J.Baker, S.Balagura, V.Baldini, W.Baranov, A.Barlow, R. J.Barsuk, S.Barter, W.Bartolini, M.Baryshnikov, F.Batozskaya, V.Batsukh, B.Battig, A.Battista, V.Bay, A.Bedeschi, F.Bediaga, I.Beiter, A.Bel, L. J.Belavin, V.Belin, S.Beliy, N.Bellee, V.Belous, K.Belyaev, I.Bencivenni, G.Ben-Haim, E.Benson, S.Beranek, S.Berezhnoy, A.Bernet, R.Berninghoff, D.Bertholet, E.Bertolin, A.Betancourt, C.Betti, F.Bettler, M. O.Bezshyiko, Ia.Bhasin, S.Bhom, J.Bieker, M. S.Bifani, S.Billoir, P.Birnkraut, A.Bizzeti, A.Bjørn, M.Blago, M. P.Blake, T.Blanc, F.Blusk, S.Bobulska, D.Bocci, V.Garcia, O. BoenteBoettcher, T.Boldyrev, A.Bondar, A.Bondar, N.Borghi, S.Borisyak, M.Borsato, M.Boubdir, M.Bowcock, T. J. V.Bozzi, C.Braun, S.Rodriguez, A. BreaBrodski, M.Brodzicka, J.Gonzalo, A. BrossaBrundu, D.Buchanan, E.Buonaura, A.Burr, C.Bursche, A.Butter, J. S.Buytaert, J.Byczynski, W.Cadeddu, S.Cai, H.Calabrese, R.Cali, S.Calladine, R.Calvi, M.Gomez, M. CalvoCamboni, A.Campana, P.Perez, D. H. CamporaCapriotti, L.Carbone, A.Carboni, G.Cardinale, R.Cardini, A.Carniti, P.Akiba, K. CarvalhoVidal, A. CasaisCasse, G.Cattaneo, M.Cavallero, G.Cenci, R.Chapman, M. G.Charles, M.Charpentier, Ph.Chatzikonstantinidis, G.Chefdeville, M.Chekalina, V.Chen, C.Chen, S.Chitic, S. -G.Chobanova, V.Chrzaszcz, M.Chubykin, A.Ciambrone, P.Vidal, X. CidCiezarek, G.Cindolo, F.Clarke, P. E. L.Clemencic, M.Cliff, H. V.Closier, J.Cobbledick, J. L.Coco, V.Coelho, J. A. B.Cogan, J.Cogneras, E.Cojocariu, L.Collins, P.Colombo, T.Comerma-Montells, A.Contu, A.Coombs, G.Coquereau, S.Corti, G.Sobral, C. M. CostaCouturier, B.Cowan, G. A.Craik, D. C.Crocombe, A.Torres, M. CruzCurrie, R.Da Silva, C. L.Dall'Occo, E.Dalseno, J.D'Ambrosio, C.Danilina, A.d'Argent, P.Davis, A.Francisco, O. De AguiarDe Bruyn, K.De Capua, S.De Cian, M.De Miranda, J. M.De Paula, L.De Serio, M.De Simone, P.de Vries, J. A.Dean, C. T.Dean, W.Decamp, D.Del Buono, L.Delaney, B.Dembinski, H. -P.Demmer, M.Dendek, A.Derkach, D.Deschamps, O.Desse, F.Dettori, F.Dey, B.Di Canto, A.Di Nezza, P.Didenko, S.Dijkstra, H.Dordei, F.Dorigo, M.Reis, A. C. dosSuárez, A. DosilDouglas, L.Dovbnya, A.Dreimanis, K.Dufour, L.Dujany, G.Durante, P.Durham, J. M.Dutta, D.Dzhelyadin, R.Dziewiecki, M.Dziurda, A.Dzyuba, A.Easo, S.Egede, U.Egorychev, V.Eidelman, S.Eisenhardt, S.Eitschberger, U.Ekelhof, R.Ek-In, S.Eklund, L.Ely, S.Ene, A.Escher, S.Esen, S.Evans, T.Falabella, A.Färber, C.Farley, N.Farry, S.Fazzini, D.Féo, M.Declara, P. FernandezPrieto, A. FernandezFerrari, F.Lopes, L. FerreiraRodrigues, F. FerreiraSole, S. FerreresFerro-Luzzi, M.Filippov, S.Fini, R. A.Fiorini, M.Firlej, M.Fitzpatrick, C.Fiutowski, T.Fleuret, F.Fontana, M.Fontanelli, F.Forty, R.Lima, V. FrancoSevilla, M. FrancoFrank, M.Frei, C.Fu, J.Funk, W.Gabriel, E.Torreira, A. GallasGalli, D.Gallorini, S.Gambetta, S.Gan, Y.Gandelman, M.Gandini, P.Gao, Y.Martin, L. M. GarciaPardiñas, J. GarcíaPlana, B. GarciaTico, J. GarraGarrido, L.Gascon, D.Gaspar, C.Gazzoni, G.Gerick, D.Gersabeck, E.Gersabeck, M.Gershon, T.Gerstel, D.Ghez, Ph.Gibson, V.Gioventù, A.Girard, O. G.Gironell, P. GironellaGiubega, L.Gizdov, K.Gligorov, V. V.Göbel, C.Golubkov, D.Golutvin, A.Gomes, A.Gorelov, I. V.Gotti, C.Govorkova, E.Grabowski, J. P.Diaz, R. GracianiCardoso, L. A. GranadoGraugés, E.Graverini, E.Graziani, G.Grecu, A.Greim, R.Griffith, P.Grillo, L.Gruber, L.Cazon, B. R. GrubergGu, C.Gushchin, E.Guth, A.Guz, Yu.Gys, T.Hadavizadeh, T.Hadjivasiliou, C.Haefeli, G.Haen, C.Haines, S. C.Hamilton, P. M.Han, Q.Han, X.Hancock, T. H.Hansmann-Menzemer, S.Harnew, N.Harrison, T.Hasse, C.Hatch, M.He, J.Hecker, M.Heijhoff, K.Heinicke, K.Heister, A.Hennessy, K.Henry, L.Heß, M.Heuel, J.Hicheur, A.Charman, R. HidalgoHill, D.Hilton, M.Hopchev, P. H.Hu, J.Hu, W.Huang, W.Huard, Z. C.Hulsbergen, W.Humair, T.Hushchyn, M.Hutchcroft, D.Hynds, D.Ibis, P.Idzik, M.Ilten, P.Inglessi, A.Inyakin, A.Ivshin, K.Jacobsson, R.Jakobsen, S.Jalocha, J.Jans, E.Jashal, B. K.Jawahery, A.Jiang, F.John, M.Johnson, D.Jones, C. R.Joram, C.Jost, B.Jurik, N.Kandybei, S.Karacson, M.Kariuki, J. M.Karodia, S.Kazeev, N.Kecke, M.Keizer, F.Kelsey, M.Kenzie, M.Ketel, T.Khanji, B.Kharisova, A.Khurewathanakul, C.Kim, K. E.Kirn, T.Kirsebom, V. S.Klaver, S.Klimaszewski, K.Koliiev, S.Kolpin, M.Kondybayeva, A.Konoplyannikov, A.Kopciewicz, P.Kopecna, R.Koppenburg, P.Kostiuk, I.Kot, O.Kotriakhova, S.Kozeiha, M.Kravchuk, L.Kreps, M.Kress, F.Kretzschmar, S.Krokovny, P.Krupa, W.Krzemien, W.Kucewicz, W.Kucharczyk, M.Kudryavtsev, V.Kunde, G. J.Kuonen, A. K.Kvaratskheliya, T.Lacarrere, D.Lafferty, G.Lai, A.Lancierini, D.Lanfranchi, G.Langenbruch, C.Latham, T.Lazzeroni, C.Gac, R. LeLefèvre, R.Leflat, A.Lemaitre, F.Leroy, O.Lesiak, T.Leverington, B.Li, H.Li, P. -R.Li, X.Li, Y.Li, Z.Liang, X.Likhomanenko, T.Lindner, R.Lionetto, F.Lisovskyi, V.Liu, G.Liu, X.Loh, D.Loi, A.Castro, J. LombaLongstaff, I.Lopes, J. H.Loustau, G.Lovell, G. H.Lucchesi, D.Martinez, M. LucioLuo, Y.Lupato, A.Luppi, E.Lupton, O.Lusiani, A.Lyu, X.Machefert, F.Maciuc, F.Macko, V.Mackowiak, P.Maddrell-Mander, S.Maev, O.Maevskiy, A.Maguire, K.Maisuzenko, D.Majewski, M. W.Malde, S.Malecki, B.Malinin, A.Maltsev, T.Malygina, H.Manca, G.Mancinelli, G.Marangotto, D.Maratas, J.Marchand, J. F.Marconi, U.Benito, C. MarinMarinangeli, M.Marino, P.Marks, J.Marshall, P. J.Martellotti, G.Martinazzoli, L.Martinelli, M.Santos, D. MartinezVidal, F. MartinezMassafferri, A.Materok, M.Matev, R.Mathad, A.Mathe, Z.Matiunin, V.Matteuzzi, C.Mattioli, K. R.Mauri, A.Maurice, E.Maurin, B.McCann, M.Mcconnell, L.McNab, A.McNulty, R.Mead, J. V.Meadows, B.Meaux, C.Meinert, N.Melnychuk, D.Merk, M.Merli, A.Michielin, E.Milanes, D. A.Millard, E.Minard, M. -N.Mineev, O.Minzoni, L.Mitzel, D. S.Mödden, A.Mogini, A.Moise, R. D.Mombächer, T.Monroy, I. A.Monteil, S.Morandin, M.Morello, G.Morello, M. J.Moron, J.Morris, A. B.Mountain, R.Mu, H.Muheim, F.Mukherjee, M.Mulder, M.Müller, D.Müller, J.Müller, K.Müller, V.Murphy, C. H.Murray, D.Naik, P.Nakada, T.Nandakumar, R.Nandi, A.Nanut, T.Nasteva, I.Needham, M.Neri, N.Neubert, S.Neufeld, N.Newcombe, R.Nguyen, T. D.Nguyen-Mau, C.Nieswand, S.Niet, R.Nikitin, N.Nolte, N. S.Oblakowska-Mucha, A.Obraztsov, V.Ogilvy, S.O'Hanlon, D. P.Oldeman, R.Onderwater, C. J. G.Osborn, J. D.Ossowska, A.Goicochea, J. M. OtaloraOvsiannikova, T.Owen, P.Oyanguren, A.Pais, P. R.Pajero, T.Palano, A.Palutan, M.Panshin, G.Papanestis, A.Pappagallo, M.Pappalardo, L. L.Parker, W.Parkes, C.Passaleva, G.Pastore, A.Patel, M.Patrignani, C.Pearce, A.Pellegrino, A.Penso, G.Altarelli, M. PepePerazzini, S.Pereima, D.Perret, P.Pescatore, L.Petridis, K.Petrolini, A.Petrov, A.Petrucci, S.Petruzzo, M.Pietrzyk, B.Pietrzyk, G.Pikies, M.Pili, M.Pinci, D.Pinzino, J.Pisani, F.Piucci, A.Placinta, V.Playfer, S.Plews, J.Casasus, M. PloPolci, F.Lener, M. PoliPoliakova, M.Poluektov, A.Polukhina, N.Polyakov, I.Polycarpo, E.Pomery, G. J.Ponce, S.Popov, A.Popov, D.Poslavskii, S.Prasanth, K.Price, E.Prouve, C.Pugatch, V.Navarro, A. PuigPullen, H.Punzi, G.Qian, W.Qin, J.Quagliani, R.Quintana, B.Raab, N. V.Rachwal, B.Rademacker, J. H.Rama, M.Pernas, M. RamosRangel, M. S.Ratnikov, F.Raven, G.Salzgeber, M. RavonelReboud, M.Redi, F.Reichert, S.Reiss, F.Alepuz, C. RemonRen, Z.Renaudin, V.Ricciardi, S.Richards, S.Rinnert, K.Robbe, P.Robert, A.Rodrigues, A. B.Rodrigues, E.Lopez, J. A. RodriguezRoehrken, M.Roiser, S.Rollings, A.Romanovskiy, V.Vidal, A. RomeroRoth, J. D.Rotondo, M.Rudolph, M. S.Ruf, T.Vidal, J. RuizSilva, J. J. SaboridoSagidova, N.Saitta, B.Guimaraes, V. SalustinoGras, C. SanchezMayordomo, C. SanchezSedes, B. SanmartinSantacesaria, R.Rios, C. SantamarinaSantimaria, M.Santovetti, E.Sarpis, G.Sarti, A.Satriano, C.Satta, A.Saur, M.Savrina, D.Schael, S.Schellenberg, M.Schiller, M.Schindler, H.Schmelling, M.Schmelzer, T.Schmidt, B.Schneider, O.Schopper, A.Schreiner, H. F.Schubiger, M.Schulte, S.Schune, M. H.Schwemmer, R.Sciascia, B.Sciubba, A.Semennikov, A.Sepulveda, E. S.Sergi, A.Serra, N.Serrano, J.Sestini, L.Seuthe, A.Seyfert, P.Shapkin, M.Shears, T.Shekhtman, L.Shevchenko, V.Shmanin, E.Siddi, B. G.Coutinho, R. Silvade Oliveira, L. SilvaSimi, G.Simone, S.Skiba, I.Skidmore, N.Skwarnicki, T.Slater, M. W.Smeaton, J. G.Smith, E.Smith, I. T.Smith, M.Soares, M.Lavra, l. SoaresSokoloff, M. D.Soler, F. J. P.De Paula, B. SouzaSpaan, B.Norella, E. SpadaroSpradlin, P.Stagni, F.Stahl, M.Stahl, S.Stefko, P.Stefkova, S.Steinkamp, O.Stemmle, S.Stenyakin, O.Stepanova, M.Stevens, H.Stocchi, A.Stone, S.Stracka, S.Stramaglia, M. E.Straticiuc, M.Straumann, U.Strokov, S.Sun, J.Sun, L.Sun, Y.Swientek, K.Szabelski, A.Szumlak, T.Szymanski, M.Tang, Z.Tekampe, T.Tellarini, G.Teubert, F.Thomas, E.Tilley, M. J.Tisserand, V.T'Jampens, S.Tobin, M.Tolk, S.Tomassetti, L.Tonelli, D.Tou, D. Y.Tournefier, E.Traill, M.Tran, M. T.Trisovic, A.Tsaregorodtsev, A.Tuci, G.Tully, A.Tuning, N.Ukleja, A.Usachov, A.Ustyuzhanin, A.Uwer, U.Vagner, A.Vagnoni, V.Valassi, A.Valat, S.Valenti, G.van Beuzekom, M.Van Hecke, H.van Herwijnen, E.Van Hulse, C. B.van Tilburg, J.van Veghel, M.Gomez, R. VazquezRegueiro, P. VazquezSierra, C. VázquezVecchi, S.Velthuis, J. J.Veltri, M.Venkateswaran, A.Vernet, M.Veronesi, M.Vesterinen, M.Barbosa, J. V. VianaVieira, D.Diaz, M. VieitesViemann, H.Vilasis-Cardona, X.Vitkovskiy, A.Vitti, M.Volkov, V.Vollhardt, A.Bruch, D. VomVoneki, B.Vorobyev, A.Vorobyev, V.Voropaev, N.Waldi, R.Walsh, J.Wang, J.Wang, M.Wang, Y.Wang, Z.Ward, D. R.Wark, H. M.Watson, N. K.Websdale, D.Weiden, A.Weisser, C.Whitehead, M.Wilkinson, G.Wilkinson, M.Williams, I.Williams, M.Williams, M. R. J.Williams, T.Wilson, F. F.Winn, M.Wislicki, W.Witek, M.Wormser, G.Wotton, S. A.Wyllie, K.Xiang, Z.Xiao, D.Xie, Y.Xing, H.Xu, A.Xu, L.Xu, M.Xu, Q.Xu, Z.Yang, Z.Yao, Y.Yeomans, L. E.Yin, H.Yu, J.Yuan, X.Yushchenko, O.Zarebski, K. A.Zavertyaev, M.Zeng, M.Zhang, D.Zhang, L.Zhang, S.Zhang, W. C.Zhang, Y.Zhelezov, A.Zheng, Y.Zhou, Y.Zhu, X.Zhukov, V.Zonneveld, J. B.Zucchelli, S.
Source
JHEP 12 (2019) 155
Subject
High Energy Physics - Experiment
Language
Abstract
A measurement of the time-dependent CP-violating asymmetry in $B_s^0\rightarrow\phi\phi$ decays is presented. Using a sample of proton-proton collision data corresponding to an integrated luminosity of $5.0$fb$^{-1}$ collected by the $\mbox{LHCb}$ experiment at centre-of-mass energies $\sqrt{s} = 7$ TeV in 2011, 8 TeV in 2012 and 13 TeV in 2015 and 2016, a signal yield of around 9000 $B_s^0\rightarrow\phi\phi$ decays is obtained. The CP-violating phase $\phi_s^{s\bar{s}s}$ is measured to be $-0.073 \pm 0.115$(stat)$\pm 0.027$(syst) rad, under the assumption it is independent on the helicity of the $\phi\phi$ decay. In addition, the CP-violating phases of the transverse polarisations under the assumption of CP conservation of the longitudinal phase are measured. The helicity-independent direct CP-violation parameter is also measured, and is found to be $|\lambda|=0.99 \pm 0.05 $(stat)$ \pm 0.01 $(syst). In addition, $T$-odd triple-product asymmetries are measured. The results obtained are consistent with the hypothesis of CP conservation in $b\rightarrow\bar{s}s\bar{s}$ transitions. Finally, a limit on the branching fraction of the $B^0\rightarrow \phi\phi$ decay is determined to be $\mathcal{B}(B^0\rightarrow \phi\phi)<2.7\times 10^{-8}$ at 90% confidence level.
Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2019-019.html